alphagov/calculators — pull request #71 by steventux (2013-10-24 12:02:14+00:00)
Title: Fix Child Benefit tax calculator bug(s).

Bugfix for problem mentioned in [this zendesk ticket](https://govuk.zendesk.com/agent/#/tickets/325313)
Fix the 'monday on or after' bug.
Add exceptions for child start dates in specific tax years.